This is the 7439th most frequent Japanese word.
保ち
"保ち" means "maintenance" or "preservation."
The word 保つ (tamotsu) here is used to mean 'to maintain' health, indicating the action required to keep the state of health in good condition.
健康を保つためには毎日の運動が重要です。
Daily exercise is important to maintain health.
保つ (tamotsu) in this context implies 'to retain' or 'to keep up' composure, showing her steadiness in handling the situation.
彼女は冷静さを保ちながら問題に対応しました。
She addressed the issue while maintaining composure.
In this sentence, 保つ (tamotsu) expresses the idea of 'preserving' or 'sustaining' peace in the household, demonstrating an ongoing requirement to uphold such a state.